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CVE REMEDIATION GUIDE
CISA KEV · Known exploitedHighFixed-version data available

CVE-2019-0193 remediation guide

Apache Solr

In Apache Solr, the DataImportHandler, an optional but popular module to pull in data from databases and other sources, has a feature in which the whole DIH configuration can come from a request's "dataConfig" parameter. The debug mode of the DIH admin screen uses this to allow convenient debugging / development of a DIH config. Since a DIH config can contain scripts, this parameter is a security risk. Starting with version 8.2.0 of Solr, use of this parameter requires setting the Java System property "enable.dih.dataConfigParam" to true.

Open CVE record
ProductApache Solr
Affected versionsApache Solr all prior to 8.2.0, < 7.7.3, >= 8.1.0 < 8.1.2, 8.0, 9.0
Fixed versions7.7.3, 8.1.2
Priority basisImmediate · CVSS 7.2 · EPSS 83.5%
01

Identify the affected asset

Confirm whether Apache Solr is installed, record the deployed version and installation path, and identify exposed interfaces.

  • Record the product name, package or appliance identifier, and installed version.
  • Identify internet-facing, administrative, API, and internal access paths.
  • Preserve the pre-change configuration and relevant service logs.
02

Validate the affected-version match

Compare the deployed version with the affected range: Apache Solr all prior to 8.2.0, < 7.7.3, >= 8.1.0 < 8.1.2, 8.0, 9.0. Treat incomplete inventory results as unresolved.

03

Prioritize with independent signals

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog. Combine this signal with asset criticality, exposure, compensating controls, and business impact.

04

Apply supported remediation

Apply updates per vendor instructions.

05

Verify the result

Confirm the resulting version, service health, authentication and access paths, monitoring coverage, and relevant security logs.

  • Confirm the expected version and package state.
  • Run a functional health check for critical service paths.
  • Review authentication, error, application, and security monitoring logs.
  • Reassess exposure if the supported fix cannot be applied.

Operational boundary

This page does not replace the vendor advisory, support contract, change-management process, or recovery plan. Do not infer that an asset is unaffected from an incomplete inventory query or a missing fixed-version field.